PHP Manual
ReflectionParameter
Returns whether the default value of this parameter is a constant

ReflectionParameter::isDefaultValueConstant

(PHP 5 >= 5.4.6, PHP 7)

ReflectionParameter::isDefaultValueConstant — Returns whether the default value of this parameter is a constant

说明

public ReflectionParameter::isDefaultValueConstant ( void ) : bool

Returns whether the default value of this parameter is a constant.

参数

此函数没有参数。

返回值

Returns TRUE if the default value is constant, and FALSE otherwise.

参见

ReflectionParameter::getDefaultValueConstantName() - Returns the default value's constant name if default value is constant or null
ReflectionParameter::isDefaultValueAvailable() - 检查是否有默认值。

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